<!DOCTYPE html>
<style>
div {
  border: solid 2px red;
  background: green;
  width: 25px;
  height: 25px;
  margin-bottom: 50px;
}
</style>
All green squares should exactly fill their corresponding red border.
<div></div>
<div></div>
<div></div>
<div></div>

<div></div>
<div></div>
<div></div>
<div></div>
